A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Copper washers including spring washers not threaded
NSN 5905-01-438-1832
NSN 6130-01-577-0675
NSN 6685-01-014-5983
NSN 2925-00-149-0760
NSN 5930-01-268-2187
NSN 6320-01-428-9205
NSN 5975-01-356-1664
NSN 5965-00-927-4074
NSN 6240-01-566-3241
NSN 6135-00-932-3136
NSN 5920-01-147-5652
NSN 5950-01-100-1079